仿顶部titlebar，点击加号弹出的PopupWindow，是封装好的PopupWindow，直接拿来用即可，先看效果图： 

 

调用代码非常简单，这是MainActivity的代码：

public class MainActivity extends AppCompatActivity {    private TitlePopup titlePopup;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initPopWindow();        findViewById(R.id.bt_start).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                titlePopup.show(v);            }        });    }    private void initPopWindow() {        // 实例化标题栏弹窗        titlePopup = new TitlePopup(this, ViewGroup.LayoutParams.WRAP_CONTENT,                ViewGroup.LayoutParams.WRAP_CONTENT);        titlePopup.setItemOnClickListener(onitemClick);        // 给标题栏弹窗添加子类        titlePopup.addAction(new ActionItem(this, R.string.menu_groupchat,                R.drawable.icon_menu_group));        titlePopup.addAction(new ActionItem(this, R.string.menu_addfriend,                R.drawable.icon_menu_addfriend));        titlePopup.addAction(new ActionItem(this, R.string.menu_qrcode,                R.drawable.icon_menu_sao));        titlePopup.addAction(new ActionItem(this, R.string.menu_money,                R.drawable.abv));    }    private TitlePopup.OnItemOnClickListener onitemClick = new TitlePopup.OnItemOnClickListener() {        @Override        public void onItemClick(ActionItem item, int position) {            // mLoadingDialog.show();            switch (position) {                case 0:// 发起群聊                    Toast.makeText(getApplicationContext(), "发起群聊", Toast.LENGTH_SHORT).show();                    break;                case 1:// 添加朋友                    Toast.makeText(getApplicationContext(), "添加朋友", Toast.LENGTH_SHORT).show();                    break;                case 2:// 扫一扫                    Toast.makeText(getApplicationContext(), "扫一扫", Toast.LENGTH_SHORT).show();                    break;                case 3:// 收钱                    Toast.makeText(getApplicationContext(), "收钱", Toast.LENGTH_SHORT).show();                    break;                default:                    break;            }        }    };}

剩余封装好的工具类不贴了，还有图片啊，颜色啊资源文件，我把demo上传到了CSDN资源下载，下载地址请点击：